Patent US3226581A successfully refreshed from Google Patents.
US3226581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generating system
Assignee: Motorola Solutions Inc
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Filing: 1961-06-29
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Granted: 1965-12-28
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Franklin C Brewster
- 👤 Charles L Shano
- 👤 Jr Alfred G Ocken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:05
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/24; H02K1/243; H02K11/00; H02K11/04; H02K11/049; H02K11/05; H02K19/00; H02K19/16; H02K19/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A DIRECT CURRENT POWER SUPPLY UNIT FOR AN AUTOMOTIVE VEHICLE INCLUDING IN COMBINATION, A DYNAMO ELECTRIC MACHINE HAVING A SUPPORTING FRAME, STATOR MEANS AND ROTOR MEANS SUPPORTED BY SAID FRAME, SAID STATOR MEANS INCLUDING A LAMINATED MAGNETIC STRUCTURE AND WINDING MEANS THEREON, SAID ROTOR MEANS INCLUDING A MAGNETIC STRUCTURE HAVING INTERLEAVED POLE PIECES AND WINDING MEANS THEREON, MEANS FOR APPLYING DIRECT CURRENT TO SAID ROTOR WINDING MEANS TO PROVIDE A ROTATING MAGNETIC FIELD WHEREBY ALTERNATING CURRENT IS INDUCED IN SAID STATOR WINDING MEANS, AN OUTPUT TERMINAL, RECTIFIER MEANS CONNECTED BETWEEN SAID STATOR WINDING MEANS AND SAID OUTPUT TERMINAL, SAID FRAME INCLUDING HEAT CONDUCTING MEANS FOR SUPPORTING SAID RECTIFIER MEANS, SAID POLE PIECES OF SAID MAGNETIC STRUCTURE OF SAID ROTOR MEANS BEING TAPERED FROM BASE PORTIONS TO TIP PORTIONS AND HAVING FACES ADJACENT SAID STATOR MAGNETIC STRUCTURE WHICH ARE SLANTED AWAY FROM SAID STATOR STRUCTURE ADJACENT THE EDGES TO REDUCE THE NOISE PRODUCED BY SAID MACHINE.
Claim 2
Dependent Claim
155 words
A DIRECT CURRENT POWER SUPPLY UNIT FOR AN AUTOMOTIVE VEHICLE INCLUDING IN COMBINATION, A DYNAMO ELECTRIC MACHINE HAVING A SUPPORTING FRAME, STATOR MEANS AND ROTOR MEANS SUPPORTED BY SAID FRAME, SAID STATOR MEANS INCLUDING A LAMINATED MAGNETIC STRUCTURE AND WINDING MEANS THEREON, SAID ROTOR MEANS INCLUDING A MAGNETIC STRUCTURE HAVING INTERLEAVED POLE PIECES AND WINDING MEANS THEREON, MEANS FOR APPLYING DIRECT CURRENT TO SAID ROTOR WINDING MEANS TO PROVIDE A ROTATING MAGNETIC FIELD WHEREBY ALTERNATING CURRENT IS INDUCED IN SAID STATOR WINDING MEANS, AN OUTPUT TERMINAL, RECTIFIER MEANS CONNECTED BETWEEN SAID STATOR WINDING MEANS AND SAID OUTPUT TERMINAL, SAID FRAME INCLUDING HEAT CONDUCTING MEANS FOR SUPPORTING SAID RECTIFIER MEANS, SAID POLE PIECES OF SAID MAGNETIC STRUCTURE OF SAID ROTOR MEANS BEING TAPERED FROM BASE PORTIONS TO TIP PORTIONS AND HAVING FACES ADJACENT SAID STATOR MAGNETIC STRUCTURE WHICH ARE SLANTED AWAY FROM SAID STATOR STRUCTURE ADJACENT THE EDGES TO REDUCE THE NOISE PRODUCED BY SAID MACHINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |